Aadhar linking - Uninor mobile problem, forgot name of SIM owner

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Sir i dont know under which name this sim is registered i have to link aadhar number so how can i know by which name this uninor sim is registered uninor number < phone number removed for privacy by staff>

Well, since you forgot in which name or ID you have used to purchase this sim. Best way is to use MNP facility to port it out to some other network.
When you submit a request to port then you can submit your current documentation / Aadhar to new provider along with porting code received through SMS. This way your phone number will be linked to Aadhar automatically.